Hot air ___ while cold air ___. A rises, fall b falls, rises

Define production possibility curve

Describe the cultural component "innovation." give two examples. give an example of the cultural component "cultural universals."

2. explain the two different types of egyptian calendars. 3. what architectural advances did the ancient egyptians make? what impact do these advances have on our lives today? 4. what did egyptian art usually depict? how does this compare to forms of art that we see today? 5. what all was found in king tut’s tomb?